Regular database backups are non-negotiable for any production system. mysqldump is the standard MySQL/MariaDB logical backup tool — it exports database contents as SQL statements (CREATE TABLE, INSERT) that can be restored on any compatible server. While mysqldump is not the fastest solution for very large databases (where Percona XtraBackup or MySQL Enterprise Backup are […]
Introduction This tutorial covers How to Configure Kubernetes RBAC on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Disable Swap swapoff -a sed -i ‘/ swap / […]
🟡 Medium ⏱ 10–30 min Last verified: 12 November 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2014-0114 CVE-2019-10086 CVE-2025-48734 Upstream summary: Apache Commons BeanUtils, as distributed in lib/commons-beanutils-1.8.0.jar in Apache Struts 1.x through 1.3.10 and in other products requiring commons-beanutils through 1.9.2, does not […]
🟡 Medium ⏱ 5–30 min Last verified: 12 November 2025 Affected versions: Ubuntu 24.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
MySQL Group Replication extends traditional primary-replica replication with a built-in, distributed consensus protocol (Paxos-based) that provides automatic failover, multi-primary writes, and conflict detection. Unlike standard replication where a manual intervention is needed to promote a replica to primary, Group Replication automatically elects a new primary if the current primary fails — making it the foundation […]
Introduction This tutorial covers How to Set Up a Kubernetes Dashboard on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Disable Swap swapoff -a sed -i ‘/ […]
🟡 Medium ⏱ 5–30 min Last verified: 12 November 2025 Affected versions: 24.04 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs […]
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read • Source: Microsoft KB5065468 • MSRC update-guide entry Related CVEs: CVE-2025-54918 CVE-2025-55226 CVE-2025-53799 CVE-2025-53797 CVE-2025-53798 CVE-2025-54095 CVE-2025-54096 CVE-2025-54097 +12 more Affected components: Windows Server 2025 Microsoft summary: Improper authentication in Windows NTLM allows an authorized […]
Introduction This tutorial covers How to Install Docker Engine on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Install Docker zypper install -y docker docker-compose Step 2 […]
🟡 Medium ⏱ 10–30 min Last verified: 12 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2020-35863 CVE-2021-21299 CVE-2021-32714 CVE-2021-32715 CVE-2022-31394 Upstream summary: An issue was discovered in the hyper crate before 0.12.34 for Rust. HTTP request smuggling can occur. Remote code execution can […]
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